TY - INPR ID - elediasc12564 A1 - Caorsi, Salvatore A1 - Massa, Andrea A1 - Pastorino, Matteo A1 - Randazzo, Andrea KW - Electromagnetic imaging KW - inverse scattering KW - elliptic cylinders KW - genetic algorithms AV - public UR - http://www.eledia.org/students-reports/564/ Y1 - 2004/08// TI - Electromagnetic Detection of Dielectric Scatterers Using Phaseless Synthetic and Real Data and the Memetic Algorithm N2 - Phaseless data are used to evaluate the application of an electromagnetic inverse-scattering-based procedure for the detection of cylindrical inhomogeneities, which are schematized as multylayer infinite dielectric cylinders with elliptic cross sections. The electromagnetic inverse problem is recast as a global optimization problem and iteratively solved by an efficient memetic algorithm, which combines deterministic and stochastic concepts. Moreover, a recursive analytical procedure is used for the forward scattering computation. The possibility of localizing and reconstructing the scatterers by using phaseless input data, which would greatly simplify the design of the imaging apparatus, is evaluated both with reference to synthetically produced data and by means of experimental data obtained by a microwave tomograph. ER -